CVE-2018-6099 : Exploit Details and Defense Strategies
Learn about CVE-2018-6099, a Google Chrome vulnerability allowing remote attackers to extract limited cross-origin data. Find mitigation steps and affected versions here.
In earlier versions of Google Chrome, specifically before 66.0.3359.117, a vulnerability in Blink allowed a remote attacker to extract limited cross-origin data by exploiting a specially crafted HTML page.
Understanding CVE-2018-6099
What is CVE-2018-6099?
A lack of CORS checks in Blink in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to leak limited cross-origin data via a crafted HTML page.
The Impact of CVE-2018-6099
This vulnerability could be exploited by a remote attacker to extract restricted cross-origin data, potentially leading to unauthorized access to sensitive information.
Technical Details of CVE-2018-6099
Vulnerability Description
The vulnerability in Google Chrome before version 66.0.3359.117 stemmed from insufficient CORS checks in Blink, enabling the extraction of limited cross-origin data.
Affected Systems and Versions
- Product: Chrome
- Vendor: Google
- Versions Affected: < 66.0.3359.117
Exploitation Mechanism
The vulnerability could be exploited by a remote attacker through a specially crafted HTML page to extract restricted cross-origin data.
Mitigation and Prevention
Immediate Steps to Take
- Update Google Chrome to version 66.0.3359.117 or later.
- Avoid visiting untrusted websites or clicking on suspicious links.
Long-Term Security Practices
- Regularly update browsers and software to the latest versions.
- Implement strict CORS policies to prevent cross-origin data leaks.
Patching and Updates
Ensure timely installation of security patches and updates provided by Google Chrome to address known vulnerabilities.